Receive a free medium beverage and a free $5 gift card when you download the Dunkin Donuts Mobile app and register a new DD card. Apply code BONUS when you register to receive the free gift card. This offer is valid today on the app only. Valid for new registrants only.

On September 29, National Coffee Day, guests can walk into any participating Dunkin' Donuts restaurant across the country and receive a free medium cup of Dunkin' Donuts hot Dark Roast Coffee, with a limit of one per guest.